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Updated: Jun 15, 2026

Neutron Radiography and Computed Tomography of Biological Systems at the Oak Ridge National Laboratory's High Flux Isotope Reactor
Published on: May 7, 2021
The front end test stand high performance H- ion source at Rutherford Appleton Laboratory
D C Faircloth1, S Lawrie, A P Letchford
1STFC, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX14 0QX, United Kingdom. dan.faircloth@stfc.ac.uk
Abstract:
The aim of the front end test stand (FETS) project is to demonstrate that chopped low energy beams of high quality can be produced. FETS consists of a 60 mA Penning Surface Plasma Ion Source, a three solenoid low energy beam transport, a 3 MeV radio frequency quadrupole, a chopper, and a comprehensive suite of diagnostics. This paper details the design and initial performance of the ion source and the laser profile measurement system. Beam current, profile, and emittance measurements are shown for different operating conditions.
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